"He said in the interview that he wanted to offer a roughly 20 percent premium over where the stock had been recently trading, which would have been about $419. He decided to round up to $420 — a number that has become code for marijuana in counterculture lore.

"'It seemed like better karma at $420 than at $419,' he said in the interview. 'But I was not on weed, to be clear. Weed is not helpful for productivity. There’s a reason for the word "stoned." You just sit there like a stone on weed.'"

Although not a total denial, Musk's response steered the conversation definitively away from making a weed connection, and offered an alternative explanation.

Tweet Embed: //twitter.com/mims/statuses/1026908611442892801?ref_src=twsrc%5Etfw In wall-to-wall coverage of the Elon Musk potential troll job, CNBC just had a full-screen graphic of a tweet that said "is this a weed joke."